A metal processing CNC shearing machine

Abstract

The present invention provides a CNC shearing machine for metal processing, which relates to the field of hardware plate processing. The CNC shearing machine for metal processing comprises a frame, wherein two frames are provided and symmetrically arranged, and also comprises a cutting knife, wherein two cutting knives are provided and symmetrically arranged up and down, and the blades are arranged oppositely, one end of the two cutting knives is welded together, and the other end is separated from each other, and a rotating shaft is fixedly installed at the welding position of the two cutting knives, and the rotating shaft is rotatably connected to one of the frames, and a downward pressing component is fixedly installed on the frame for pressing the cutting knife downward, and an upward pushing component is installed on the other frame for pushing the cutting knife upward. The CNC shearing machine for metal processing, by arranging the downward pressing component, the upward pushing component and the cutting knife, the double cutting knives first cut downward when shearing the plate, and then pull the blade back from the bottom, which can ensure that the incision returns to the original state to the maximum extent, and avoid the problem of the blade bending downward due to the single downward pressing cutting force.

Description

Technical Field

[0001] The invention relates to the field of hardware plate processing, in particular to a metal processing numerically controlled shearing machine. Background Art

[0002] Plates are flat rectangular building material plates made of standard sizes, used in the construction industry to make components of walls, ceilings or floors. They also refer to metal plates made by forging, rolling or casting. Among them, iron sheets are a type of metal plate. After the iron sheets are produced, they need to be cut, coated and transported. Existing iron sheets are usually cut by shearing machines. However, existing shearing machines often have the following problems when cutting iron sheets:

[0003] When the existing shearing machine cuts the iron sheet, due to the thin thickness of the iron sheet, the two sides of the cut of the iron sheet are easily squeezed by the blade of the shearing machine to form a downward bending situation, resulting in uneven cut ends of the iron sheet after cutting, thus affecting the aesthetics of the iron sheet. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a metal processing CNC shearing machine, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a metal processing CNC shearing machine, including a frame, two frames are provided, symmetrically arranged, and also includes cutting knives, two cutting knives are provided, symmetrically arranged up and down, and the blades are arranged opposite to each other, one end of the two cutting knives are welded together, and the other ends are separated from each other, and a rotating shaft is fixedly installed at the welding position of the two cutting knives, and the rotating shaft is rotatably connected to one of the frames, a pressing component is fixedly installed on the frame for pressing the cutting knife down, and an upward pushing component is installed on the other frame for pushing the cutting knife up, a slide rail is fixed between the two frames, a bottom plate is provided on the slide rail, the bottom plate slides elastically relative to the slide rail, and the upward pushing component can control the bottom plate to slide relative to the slide rail, and a limiting component is fixedly installed on the bottom plate between the two frames.

[0006] Preferably, a connecting beam is provided between the two frames, the connecting beam fixes the two frames, and a tool withdrawal groove is provided on the connecting beam which passes through the two frames from top to bottom.

[0007] Preferably, the pressing assembly includes a hydraulic cylinder A, a slider and a roller A. The hydraulic cylinder A is fixed to the frame. The slider is slidably connected to the cutting knife above. The output end of the hydraulic cylinder A is rotationally connected to the side of the slider. There are multiple rollers A. Roller A is installed on the slider and rotationally connected to the slider. The side of roller A away from the slider contacts the bottom end of the connecting beam.

[0008] Preferably, a slideway is fixedly mounted on the upper cutting knife, and the sliding block is clamped on the slideway and slidably connected thereto.

[0009] Preferably, the push-up assembly includes a hydraulic cylinder B and a swing arm, the hydraulic cylinder B is arranged opposite to the hydraulic cylinder A, the fixed end of the hydraulic cylinder B is hinged to the frame, the swing arm is fixed to the other end of the hydraulic cylinder B, and the other end of the swing arm is fixedly mounted on the rotating shaft.

[0010] Preferably, a spring is fixedly mounted on one end of the bottom plate, and the other end of the spring is fixedly mounted on the slide rail. A plurality of regular grooves are provided on the upper surface of the bottom plate, and the front ends of the regular grooves are inclined structures.

[0011] Preferably, a rocker arm is installed on the bottom surface of one end of the base plate close to the swing arm, the rocker arm is hinged to the base plate, a torsion spring is installed at the hinge position of the two, and a roller B is installed on the end of the rocker arm away from the base plate.

[0012] Preferably, the roller B contacts one side of the swing arm, and when the hydraulic cylinder B pulls the swing arm, the swing arm pushes the roller B to make the bottom plate slide and stretch the spring.

[0013] Preferably, the limiting assembly includes a fixed frame, a hydraulic cylinder C and a pressure plate. The fixed frame is located between the two frames and fixed to the two frames. The hydraulic cylinder C is provided with multiple ones and is fixed to the fixed frame. The pressure plate is located on the bottom plate, and the output ends of the hydraulic cylinder C are all fixed to the bottom plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This metal processing CNC shearing machine is equipped with a downward pressure component, an upward push component and a cutting knife. When the double cutting knife shears the plate, it first cuts downward and then pulls the blade back from the bottom, which can ensure that the incision returns to its original state to the greatest extent, avoiding the problem of the blade bending downward due to the single downward pressure and cutting force.

[0016] 2. When the metal processing CNC shearing machine returns the knife, the swing arm pushes the bottom plate to move. The metal plate on the bottom plate can generate friction with the bottom plate and the pressure plate, and can be easily turned from a fixed state to a moving state. At the same time, with the return of the knife, the contact force between the plate and the cutting knife is greatly reduced, which can restore the plate cut while preventing the plate cut from bending upward.

[0017] 3. In this metal processing CNC shearing machine, the extension of hydraulic cylinder A can drive the cutting knife to press the shear plate, and on this basis, hydraulic cylinder B can assist in pushing it. The two work together to make shearing smoother and faster. When the double cutting knives are shearing, it can avoid the situation where a single cutting knife is subjected to excessive force and causes breakage.

[0018] 4. The metal processing CNC shearing machine is provided with a limiting component, and the bottom plate and the pressure plate are fitted with the cutting knife. Before cutting, the plate is firmly fixed by the two, and the problem of bending can be avoided during cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a front view of the structure of the present invention;

[0021] Figure 3 It is a partial structural schematic diagram of the present invention;

[0022] Figure 4 It is a structural diagram of the cutting knife of the present invention;

[0023] Figure 5 It is a structural diagram of the limiting assembly and the bottom plate of the present invention;

[0024] Figure 6 is a structural diagram of the base plate of the present invention;

[0025] Figure 7 For the present invention Figure 5 A magnified view of the structure at center.

[0026] Among them: 1. Frame; 2. Cutting knife; 3. Rotating shaft; 4. Pressing assembly; 401. Hydraulic cylinder A; 402. Sliding block; 403. Roller A; 5. Pushing assembly; 501. Hydraulic cylinder B; 502. Swing arm; 6. Slide rail; 7. Bottom plate; 8. Limiting assembly; 801. Fixed frame; 802. Hydraulic cylinder C; 803. Pressing plate; 9. Connecting beam; 10. Retracting groove; 11. Slideway; 12. Spring; 13. Regularizing groove; 14. Rocker arm; 15. Roller B. DETAILED DESCRIPTION

[0027] like Figure 1-7 As shown, a metal processing CNC shearing machine includes a frame 1, which is provided with two frames 1 and symmetrically arranged, and also includes a cutting knife 2, which is provided with two cutting knives 2, which are symmetrical up and down and have blades arranged opposite to each other. One end of the two cutting knives 2 is welded together, and the other end is separated from each other. A rotating shaft 3 is fixedly installed at the welding position of the two cutting knives 2, and the rotating shaft 3 is rotatably connected to one of the frames 1. A pressing component 4 is fixedly installed on the frame 1 for pressing the cutting knife 2 down, and an upward push component 5 is installed on the other frame 1 for pushing the cutting knife 2 up. A slide rail 6 is fixed between the two frames 1, and a bottom plate 7 is provided on the slide rail 6. The bottom plate 7 slides elastically relative to the slide rail 6. The upward push component 5 can control the bottom plate 7 to slide relative to the slide rail 6. A limiting component 8 is fixedly installed on the bottom plate 7 between the two frames 1. A connecting beam 9 is provided between the two frames 1, and the connecting beam 9 fixes the two frames 1. The connecting beam 9 is provided with a knife retreat groove 10 that runs through the upper and lower parts. A spring 12 is fixedly mounted on one end of the bottom plate 7, and the other end of the spring 12 is fixedly mounted on the slide rail 6. A plurality of regular grooves 13 are formed on the upper surface of the bottom plate 7, and the front ends of the regular grooves 13 are inclined structures.

[0028] In this embodiment, the cutting edges of the cutting knives 2 correspond to each other, and then one end of the two are welded together, with a small angle between the two. The welding position needs to be reinforced with a metal plate. The rotating shaft 3 is connected to the cutting knives 2 with a spline. Under normal conditions, the horizontal line between the two cutting knives 2 is the middle position in the processing movement. A dovetail block is provided at the bottom of the bottom plate 7 to cooperate with the slide rail 6, and a threaded rod is also provided in the spring 12 to adjust the stretching amount of the spring 12 and the original position of the bottom plate 7.

[0029] In an optional embodiment, if Figure 2-4 As shown, the pressing assembly 4 includes a hydraulic cylinder A401, a slider 402 and a roller A403. The hydraulic cylinder A401 is fixed to the frame 1. The slider 402 is slidably connected to the upper cutting knife 2. The output end of the hydraulic cylinder A401 is rotatably connected to the side of the slider 402. There are multiple rollers A403. The rollers A403 are mounted on the slider 402 and are rotatably connected to the slider 402. The side of the roller A403 away from the slider 402 contacts the bottom end of the connecting beam 9. A slideway 11 is fixedly installed on the upper cutting knife 2. The slider 402 is stuck on the slideway 11 and is slidably connected thereto.

[0030] In this embodiment, the hydraulic cylinder A401 is driven and controlled by a hydraulic device. In order to ensure balance or provide sufficient force, two hydraulic cylinders A401 can be used. The roller A403 at the upper end of the slider 402 is always squeezed by the connecting beam 9, thereby gradually squeezing the cutting knife 2 when moving, and can provide a large pressure, which is sufficient to ensure that the cutting knife 2 can perform shearing work, and the slider 402 and the slide 11 are closely matched.

[0031] In an optional embodiment, if Figure 2-4 As shown, the push-up assembly 5 includes a hydraulic cylinder B501 and a swing arm 502. The hydraulic cylinder B501 is arranged opposite to the hydraulic cylinder A401. The fixed end of the hydraulic cylinder B501 is hinged to the frame 1. The swing arm 502 is fixed to the other end of the hydraulic cylinder B501, and the other end of the swing arm 502 is fixedly mounted on the rotating shaft 3.

[0032] In this embodiment, the hydraulic cylinder B501 is driven and controlled by a hydraulic device. In order to ensure balance or provide sufficient force, two hydraulic cylinders B501 can be used. The hydraulic cylinder B501 is hinged to the frame 1 with a movable connecting seat. When it is extended and contracted, no motion interference will occur. A movable groove is also reserved on the frame 1 for its movement position. One end of the swing arm 502 is mounted on the rotating shaft 3.

[0033] A rocker arm 14 is installed on the bottom surface of one end of the bottom plate 7 close to the swing arm 502. The rocker arm 14 is hinged to the bottom plate 7. A torsion spring is installed at the hinge position of the two. A roller B15 is installed at the end of the rocker arm 14 away from the bottom plate 7. The roller B15 contacts one side of the rocker arm 502. When the hydraulic cylinder B501 pulls the rocker arm 502, the rocker arm 502 pushes the roller B15 to slide the bottom plate 7 and stretch the spring 12. When the rocker arm 502 swings and squeezes the roller B15, since the rocker arm 14 is mobile, it can avoid damage to the rocker arm 14. At the same time, the swing angle of the rocker arm 14 is limited, and the rocker arm 502 will not be squeezed and misaligned.

[0034] The limiting assembly 8 includes a fixed frame 801, a hydraulic cylinder C802 and a pressure plate 803. The fixed frame 801 is located between the two frames 1 and fixed to the two frames. The hydraulic cylinder C802 is provided with multiple components for maintaining balance and is fixed to the fixed frame 801. The pressure plate 803 is located above the base plate 7, and the output ends of the hydraulic cylinder C802 are all fixed to the base plate 7.

[0035] Hydraulic cylinder C802 is driven and controlled by the hydraulic assembly, and is linked to hydraulic cylinder A401 and hydraulic cylinder B501 by the control panel. It can be controlled in sequence or simultaneously.

[0036] When in use, the metal sheet is placed between the bottom plate 7 and the pressure plate 803. Before cutting, the hydraulic cylinder C802 is controlled to make the pressure plate 803 fit with the bottom plate 7 to fix the metal sheet. Then the hydraulic cylinder A401 is controlled to extend so that the slider 402 squeezes the cutting knife 2, and the cutting knife 2 can rotate downward. Then the hydraulic cylinder B501 cooperates with the hydraulic cylinder A401 to extend, so that the sheet is gradually cut by the rotating cutting knife 2. After cutting, the hydraulic cylinder B501 is pulled back, and the hydraulic cylinder A401 cooperates with it. At this time, the cutting knife 2 returns to its original state and moves upward again. The cutting knife 2 below is pulled back. When the cutting knife 2 is used, the incision can be processed again. During this process, the swing arm 502 can squeeze the roller B15 to make the bottom plate 7 slide and stretch the spring 12. When the bottom plate 7 slides, the fixing force between the plate and the bottom plate 7 and the pressure plate 803 is reduced, so that the bottom plate 7 can slide to one side under the pressure of the cutting knife 2. During this sliding process, the contact force between the incision of the plate and the cutting knife 2 gradually changes, so that the cutting edge will not bend upwards when the cutting knife 2 processes the original bending. At the same time, the regular groove 13 can make the complete part of the plate be squeezed and deformed and return to its original flat state.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal processing CNC shearing machine, comprising a frame (1), the frame (1) having two symmetrically arranged parts, characterized in that: It also includes a cutting knife (2), wherein two cutting knives (2) are provided, symmetrically arranged in an upper and lower direction, and the blades are arranged opposite to each other. One end of the two cutting knives (2) is welded together, and the other end is separated from each other. A rotating shaft (3) is fixedly installed at the welding position of the two cutting knives (2), and the rotating shaft (3) is rotatably connected to one of the frames (1). A pressing component (4) is fixedly installed on the frame (1) for pressing the cutting knife (2) downward. A pushing component (5) is installed on the other frame (1) for pushing the cutting knife (2) upward. A slide rail (6) is fixed between the two frames (1). A bottom plate (7) is provided on the slide rail (6). The bottom plate (7) slides elastically relative to the slide rail (6). The pushing component (5) can control the bottom plate (7) to slide relative to the slide rail (6). A limiting component (8) is fixedly installed on the bottom plate (7) between the two frames (1). A connecting beam (9) is provided between the two frames (1), the connecting beam (9) fixing the two frames (1), and a backhoe groove (10) penetrating vertically is provided on the connecting beam (9); The pressing assembly (4) comprises a hydraulic cylinder A (401), a slider (402) and a roller A (403), wherein the hydraulic cylinder A (401) is fixed to the frame (1), the slider (402) is slidably connected to the cutting knife (2) above, the output end of the hydraulic cylinder A (401) is rotatably connected to the side of the slider (402), a plurality of rollers A (403) are provided, the rollers A (403) are mounted on the slider (402) and are rotatably connected to the slider (402), and the side of the rollers A (403) away from the slider (402) contacts the bottom end of the connecting beam (9); A slideway (11) is fixedly mounted on the upper cutting knife (2), and a slider (402) is clamped on the slideway (11) and slidably connected thereto; The push-up assembly (5) comprises a hydraulic cylinder B (501) and a swing arm (502), wherein the hydraulic cylinder B (501) is arranged opposite to the hydraulic cylinder A (401), the fixed end of the hydraulic cylinder B (501) is hinged to the frame (1), the swing arm (502) is fixed to the other end of the hydraulic cylinder B (501), and the other end of the swing arm (502) is fixedly mounted on the rotating shaft (3); A spring (12) is fixedly mounted on one end of the bottom plate (7), and the other end of the spring (12) is fixedly mounted on the slide rail (6). A plurality of regular grooves (13) are formed on the upper surface of the bottom plate (7), and the front ends of the regular grooves (13) are inclined structures. A rocker arm (14) is installed on the bottom surface of one end of the bottom plate (7) close to the swing arm (502), the rocker arm (14) is hinged to the bottom plate (7), a torsion spring is installed at the hinge position of the two, and a roller B (15) is installed on the end of the rocker arm (14) away from the bottom plate (7); The roller B (15) contacts one side of the swing arm (502). When the hydraulic cylinder B (501) pulls the swing arm (502), the swing arm (502) pushes the roller B (15) to slide the bottom plate (7) and stretch the spring (12).

2. A metal processing CNC shearing machine according to claim 1, characterized in that: The limiting assembly (8) comprises a fixing frame (801), a hydraulic cylinder C (802) and a pressure plate (803); the fixing frame (801) is located between the two frames (1) and is fixed to the two frames; the hydraulic cylinder C (802) is provided with a plurality of parts and is fixed to the fixing frame (801); the pressure plate (803) is located above the bottom plate (7); and the output ends of the hydraulic cylinder C (802) are all fixed to the bottom plate (7).

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